genus of annual or perennial plants of tropical America having solitary heads of brightly colored flowers | a card game using a pack of cards from which one queen has been removed; players match cards and the player holding the unmatched queen at the end of the game is the loser (or `old maid') |
| an elderly unmarried woman |
| the loser in a game of old maid |
| commonly cultivated Old World woody herb having large pinkish to red flowers |
| any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads |